【摘 要】
：
A series of tests of deformation-induced ferrite transformation (DIFT) in a low carbon steel were carried out by the Gleeble-3500 hot simulation machine at a te
论文部分内容阅读
A series of tests of deformation-induced ferrite transformation (DIFT) in a low carbon steel were carried out by the Gleeble-3500 hot simulation machine at a temperature range of Ae3-Ar3.The overall stress-strain curves during DIFT can be divided into three typical types:"double-humped","single-humped" and "transitional".The peaks exhibited in the curve are involved with deformation-induced transformation which happened in grains or at the grain boundaries.According to the stress-time curve and strain-time curve,strain capacity dramatically postponed the strain-induced transformation,which leads to the start of the transformation right ahead of the finish of deformation and the majority of the ferrite transformation process mainly happened after the deformation.Deformation-induced transformation is a metadynamic transformation process with dynamic nucleation.
其他文献
吾师李斯文教授、主任医师,主攻肿瘤的防治研究,运用扶正抑癌理论指导临床肿瘤治疗,功效卓著.余有幸受李老师教导,侍诊左右,受益颇深.现将吾师扶正抑癌理论总结如下,以飨同道
BACKGROUND: Lots of evidences have demonstrated that acute inflammatory reaction plays an important role in cerebral ischemia and cerebral ischemia/reperfusion
目的:评价经皮肺动脉瓣球囊成形术对肺动脉瓣狭窄的治疗效果。方法:经皮seldinger穿刺右股动脉成功后,用inoue左房室瓣球囊或自制肺动脉瓣球囊反复扩张肺动脉瓣。结果:20例患
商业银行业务流程创新的核心思想:在有效保证质量的前提下,追求高效.业务流程创新可以采用以下的方法:统计、列举与流程图相结合的方法,员工持续改进,专家小组与“傻瓜式”操
求三角函数的最小正周期也是高考中的一个热点,解决这类问题常见的办法就是将给定的三角函数化为标准型,借助于周期公式解决;对于各类含绝对值的三角函数最小正周期题目往往
桩古40-斜1井是云顶公司的一口定向井，主要开发古潜山裂缝性油藏，技套井眼φ311．2mm，技套井深4128m，技术套管座封于古潜山界面，地层岩性复杂，泥浆易受污染，古潜山界面地层易漏，裸眼段
讨论了教材《电力系统自动装置原理》有关三相半控整流电路失控现象的论述,分析了失控现象的机理、原因、特点和防止措施.
如今的中国平面设计是多彩缤纷的状态,现代化与科技化的发展,平面设计充满了更多的创作方式,但我们除了正确认识数码平面设计,也要同时重视民族文化的培养,要摆脱崇拜国外平
工程结算直接关系到建筑工程资金的使用和安排,直接影响工程造价和业主利益.本文通过对工程结算必须具备的依据、结算的方式、工程结算中常见问题的分析,提出如何加强管理、
随着建筑业的发展和人民生活水平的提高,对住宅工程的结构安全、适度要求越来越高.近年来在住宅工程中大量采用砼现浇楼析然而现浇楼板也会同现裂缝问题.现就现浇楼板的裂缝